<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    #box {
      width: 200px;
      height: 100px;
      border: 1px solid black;
      box-shadow: 10px 10px 10px;
    }
  </style>
</head>

<body>
  <input type="text" class="input1">
  <div id="box" draggable="true"></div>
  <script src="./test.js"></script>
</body>

</html>